Which rational numbers fall between 2.7 and 2.8 on a number line

Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.

Simplify. 3(4+4x) (type your answer in with no spaces)

How do i simply this radical expression?